Fix a bug : Whoops don't render anything

Hey :)
When I create a new composer project on the dev-develop branch (5.0), I've got this error :

local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Uncaught exception 'RuntimeException' with message 'Could not find resource 'views/layout.html.php' in any resource paths.(searched: /Users/tyloo/Code/laravel5/vendor/filp/whoops/src/Whoops/Handler/../Resources)' in /home/vagrant/Code/laravel5/storage/meta/compiled.php:12700

Basically, you don't have the proper layout for whoops I guess. A php artisan optimize fix this issue.